CN209605792U - Bearing circularity detection device - Google Patents

Abstract

The utility model discloses a bearing roundness detection device, comprising a workbench, the upper end of the workbench is fixedly connected with a drive motor, the upper end of the workbench is provided with a circular groove, and the drive shaft of the drive motor extends to A disc is fixedly connected to the circular groove, the upper end of the disc is fixedly connected to a column, and a plurality of horizontal plates are evenly distributed on the side wall of the column, and upper and lower plates are arranged on the side wall of the horizontal plate away from the column A connected strip-shaped opening, the strip-shaped opening is slidingly connected with a movable block, and the left and right side walls of the movable block are fixedly connected with U-shaped pieces corresponding to the strip-shaped opening, and the notch of the U-shaped piece is connected with the horizontal The plates are slidingly connected, and the upper end of the U-shaped piece is threadedly connected with bolts against the transverse plate. The utility model ensures the stability of the bearing during outer roundness detection, improves the application range of the device, can be used for the outer roundness detection of various bearings with different sizes, and improves the detection accuracy.

Description

Bearing roundness detection device

technical field

The utility model relates to the technical field of bearing detection devices, in particular to a bearing roundness detection device.

Background technique

Bearings are components that fix and reduce the friction coefficient of loads during mechanical transmission. When other parts move relative to each other on the shaft, it is used to reduce the friction coefficient during power transmission and keep the center of the shaft fixed.

The existing method of measuring the roundness of bearings is generally to measure the outer diameter with a caliper and the inner diameter with a roundness meter. This measurement method can accurately ensure the accuracy of measuring the inner diameter, but the measurement efficiency is low, and the outer diameter is a random inspection of several parts on the bearing. Measure at one point, the data after measurement is on the diameter, and it needs to be calculated to get the roundness deviation value, the conclusion drawn is not accurate, and in the process of measurement, the magnitude of the force will also seriously affect the measurement result, for Therefore, we propose a bearing roundness detection device to solve the problems raised above.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a bearing roundness detection device.

In order to achieve the above object, the utility model adopts the following technical solutions:

A bearing roundness detection device, comprising a workbench, the upper end of the workbench is fixedly connected with a drive motor, the upper end of the workbench is provided with a circular groove, the drive shaft of the drive motor extends into the circular groove and A disc is fixedly connected, and the upper end of the disc is fixedly connected with a column, and a plurality of horizontal plates are evenly distributed on the side wall of the column, and a strip-shaped opening connected up and down is opened on the side wall of the horizontal plate away from the column , the strip-shaped opening is slidably connected with a movable block, and the left and right side walls of the movable block are fixedly connected with a U-shaped piece corresponding to the strip-shaped opening, and the notch of the U-shaped piece is slidably connected with the horizontal plate, so The upper end of the U-shaped piece is threadedly connected with a bolt against the horizontal plate, a connecting rod is fixedly connected to the side wall of the movable block, and an arc-shaped block is fixedly connected to the end of the connecting rod away from the movable block, and the arc-shaped block A spring is fixedly connected with the horizontal plate, and a detection mechanism is arranged on the upper end of the workbench.

Preferably, the number of the horizontal plates is three, and bearings are sleeved on the outer sides of the three horizontal plates, and the arc-shaped block is against the inner wall of the bearing.

Preferably, the detection mechanism includes an installation groove opened on the workbench, a slide bar is fixedly connected in the installation groove, and a slide block is slidably sleeved on the outside of the slide bar, the upper end of the slide block is fixedly connected with a detection device.

Preferably, the slider is trapezoidal, and a displacement sensor is fixedly connected to the upper end of the slider, the displacement sensor is electrically connected to the detection device, a detection head is arranged on the side wall of the detection device, and the detection head is connected to the bearing The outer side wall contact connection.

Preferably, a protective cover is fixedly sleeved on the outer side of the drive motor, and the protective cover is fixedly connected to the lower end surface of the workbench by a plurality of bolts.

Preferably, a protective pad is fixedly connected to the side wall of the arc block in contact with the inner wall of the bearing.

Compared with the prior art, the beneficial effects of the utility model are:

1. By connecting a plurality of horizontal plates evenly distributed on the outer wall of the column, and adjusting the position of the movable block in the bar-shaped opening, the bearings with different inner diameters can be clamped to ensure the stability of the bearings during the outer roundness test. , which improves the scope of use of the device and can be used for testing the outer roundness of bearings of various sizes.

2. By installing a detection mechanism on the workbench, the displacement sensor can quickly reflect the moving distance between the detection head and the outer wall of the bearing, and can indirectly detect the outer roundness of the bearing, judge whether there is a deviation, and improve the detection efficiency. precision.

Description of drawings

Fig. 1 is a top view schematic diagram of the bearing roundness detection device proposed by the utility model;

Fig. 2 is a side sectional schematic diagram of the bearing roundness detection device proposed by the utility model;

Fig. 3 is the structure diagram of the movable block of the bearing roundness detection device proposed by the utility model;

FIG. 4 is a partial enlarged view of A in FIG. 1 .

In the figure: 1 workbench, 2 driving motor, 3 disc, 4 column, 5 horizontal plate, 6 movable block, 7 U-shaped piece, 8 connecting rod, 9 arc-shaped block, 10 spring, 11 sliding rod, 12 sliding block, 13 detection device, 14 displacement sensor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-4, a bearing roundness detection device includes a workbench 1, and a drive motor 2 is fixedly connected to the upper end of the workbench 1. Specifically, the drive motor can be an existing miniaturized circular motor, especially It is a brushless DC motor, which outputs torque through rotation, its exclusive control range is 500-3000r/min, and the power output is controlled at 90-400W.

The outer side of the driving motor 2 is fixedly sleeved with a protective cover, and the protective cover is fixedly connected with the lower end surface of the workbench 1 by a plurality of bolts, and the upper end of the workbench 1 is provided with a circular groove.

The drive shaft of the driving motor 2 extends into the circular groove and is fixedly connected with a disc 3 , the upper end of the disc 3 is fixedly connected with a column 4 , and a plurality of horizontal plates 5 are evenly distributed on the side walls of the column 4 . Preferably, the number of horizontal plates 5 is three, and the outer sides of the three horizontal plates 5 are sleeved with bearings.

The side wall of the horizontal plate 5 away from the column 4 is provided with a strip-shaped opening connected up and down, and a movable block 6 is slidably connected to the strip-shaped opening.

U-shaped pieces 7 corresponding to the strip-shaped openings are fixedly connected to the left and right side walls of the movable block 6 , and the notch of the U-shaped piece 7 is slidably connected to the horizontal plate 5 .

The upper end of the U-shaped piece 7 is threadedly connected with a bolt against the cross plate 5 .

A connecting rod 8 is fixedly connected to the side wall of the movable block 6, and an arc-shaped block 9 is fixedly connected to an end of the connecting rod 8 away from the movable block 6, and the arc-shaped block 9 is offset against the inner wall of the bearing.

A spring 10 is fixedly connected between the arc-shaped block 9 and the horizontal plate 5. By adjusting the position of the movable block 6 in the bar-shaped opening, the bearings with different inner diameters can be clamped to ensure the stability of the bearing during outer roundness detection. The application range of the device is improved, and the device can be used for testing the outer roundness of bearings of various sizes.

The upper end of the workbench 1 is provided with a detection mechanism. Specifically, the detection mechanism includes a mounting groove provided on the workbench 1. A slide rod 11 is fixedly connected to the installation groove, and a slide block 12 is slidably sleeved on the outside of the slide rod 11. A detection device 13 is fixedly connected to the upper end of the slider 12 .

In a more specific embodiment, the slider 12 is trapezoidal, and the upper end of the slider 12 is fixedly connected with a displacement sensor 14, the displacement sensor 14 is electrically connected with the detection device 13, and a detection head is arranged on the side wall of the detection device 13, and The detection head is in contact with the outer wall of the bearing. Wherein, the installation method of the slider 12 and the displacement sensor 14 is a fixed connection.

In this way, by providing a detection mechanism on the workbench 1, the distance between the detection device 13 and the bearing can be adjusted, and the detection head is in contact with the outer wall of the bearing. When the outer roundness of the bearing is detected, the displacement sensor 14 , can transmit and display the distance of the lateral movement of the detection head, and then indirectly detect the outer roundness of the bearing and judge whether there is a deviation.

as an optional example. Displacement sensor 14 adopts Otex CD5 series sensor.

In combination with the illustrations and the above-described embodiments, when the roundness detection device of the present invention is in use, the bearings to be detected are sleeved on the outside of a plurality of arc-shaped blocks 9, and the position of the movable block 6 in the bar-shaped opening is adjusted. Bearings with different inner diameters can be clamped at the same position, and the U-shaped part 7 is fixed with bolts to ensure the stability of the bearings during outer roundness testing.

During the detection process, start the driving motor 2 to make the disc 3 rotate, and then drive the bearing to rotate, and with the cooperation of the detection device 13 and the displacement sensor 14, the distance moved between the detection head and the outer wall of the bearing can be measured , and then can indirectly detect the outer roundness of the bearing, judge whether there is a deviation, and improve the accuracy of the measurement.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (4)

1. A bearing roundness detection device is characterized in that, comprising a workbench (1), the upper end of the workbench (1) is fixedly connected with a drive motor (2); The upper end of the workbench (1) is provided with a circular groove, and the drive shaft of the drive motor (2) extends into the circular groove and is fixedly connected with a disc (3); The upper end of the disc (3) is fixedly connected with a column (4); A plurality of horizontal plates (5) are evenly distributed on the side wall of the column (4); The side wall of the horizontal plate (5) away from the column (4) is provided with a strip-shaped opening connected up and down, and a movable block (6) is slidably connected to the strip-shaped opening; The left and right side walls of the movable block (6) are fixedly connected with a U-shaped piece (7) corresponding to the strip-shaped opening, and the notch of the U-shaped piece (7) is slidably connected with the horizontal plate (5); The upper end of the U-shaped piece (7) is threadedly connected with a bolt against the horizontal plate (5), and the side wall of the movable block (6) is fixedly connected with a connecting rod (8), and the connecting rod (8) is away from One end of the movable block (6) is fixedly connected with an arc-shaped block (9); A spring (10) is fixedly connected between the arc-shaped block (9) and the horizontal plate (5), and a detection mechanism is arranged on the upper end of the workbench (1); Wherein, the workbench (1) is provided with an installation groove, and a slide bar (11) is fixedly connected in the installation groove, and a slide block (12) is slidably sleeved on the outside of the slide bar (11), and the slide block (12) ) is trapezoidal, and the upper end of the slider (12) is fixedly connected with a displacement sensor (14), the displacement sensor (14) is electrically connected with the detection device (13), and the side wall of the detection device (13) is provided with There is a detection head, and the detection head is in contact with the outer wall of the bearing. 2. The bearing roundness detection device according to claim 1, characterized in that, the number of the horizontal plates (5) is three, and the outer sides of the three horizontal plates (5) are sleeved with bearings, and the arc Block (9) is offset against the inner wall of bearing. 3. The bearing roundness detection device according to claim 1, characterized in that a protective cover is fixedly sleeved on the outer side of the drive motor (2), and there are multiple bolted connection. 4. The bearing roundness detection device according to claim 1, characterized in that, a protective pad is fixedly connected to the side wall of the arc-shaped block (9) in contact with the inner wall of the bearing.